They look like CH-53 Super Stallions. Four in formation must have rattled your windows!
The CH-53E Super Stallion is the heavy-lift helicopter used by Marines around the world. It is capable of rapidly transporting troops and equipment from ship-to-shore: launching amphibious assaults, facilitating logistics and maintenance, providing sustainment and supplies, and equipping the warfighter for mission success. The powerful Super Stallion is capable of lifting heavy military equipment, yet still compact enough to fit onboard an amphibious warfare ship where it can take off carrying 16 tons of cargo and deliver it 50 miles away before returning to base.
They look like CH-53 Super Stallions. Four in formation must have rattled your windows!
https://www.navair.navy.mil/product/CH-53E-Super-Stallion
They certainly rattled the house. Heard them coming from a mile or so away. Appreciate the feedback.